00:01
Every time that we look at a problem that has a markup, you know, write that out first.
00:05
What you need to do is do one plus the rate that they give you.
00:12
And every discount that you do, what you want to make sure that you do is one minus whatever that rate is.
00:21
And the reason why it's one plus mail jot this down is it's 100 % of that item plus, you know, rap as a percentage rate.
00:34
So you're, i guess, selling for the cost and then you're adding for your own profit.
00:40
Whereas this one, you're taking the selling price and you're removing whatever that percent discount is.
00:48
So as i'm looking at each one of these, i don't know what the initial prices, but you could even write one for 100 % again.
00:57
And then when i see 130 % as a decimal will be 1 .3, and each one of these times i'm going to multiply.
01:06
But then the next time we do a discount of 20 % off, it would be 1 minus 0 .2.
01:14
And maybe i need a lesson on changing percents to decimals.
01:18
You just move that decimal over twice to out of 100.
01:22
But then it goes on clearance for another 30%, so 1 minus 0 .3.
01:28
And then this individual has a 10 % off coupon...